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55032949 = 193778283
BaseRepresentation
bin1101000111101…
…1110001110101
310211112222000101
43101323301311
5103042023244
65243314101
71235525626
oct321736165
9124488011
1055032949
1129079084
121651b931
13b52b19a
147447a4d
154c710d4
hex347bc75

55032949 has 8 divisors (see below), whose sum is σ = 59495840. Its totient is φ = 50726736.

The previous prime is 55032931. The next prime is 55032953. The reversal of 55032949 is 94923055.

55032949 = T1361 + T1362 + ... + T1417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55032949 - 25 = 55032917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55032449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38439 + ... + 39844.

It is an arithmetic number, because the mean of its divisors is an integer number (7436980).

Almost surely, 255032949 is an apocalyptic number.

It is an amenable number.

55032949 is a deficient number, since it is larger than the sum of its proper divisors (4462891).

55032949 is a wasteful number, since it uses less digits than its factorization.

55032949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78339.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 55032949 is about 7418.4195756239. The cubic root of 55032949 is about 380.3711724198.

The spelling of 55032949 in words is "fifty-five million, thirty-two thousand, nine hundred forty-nine".

Divisors: 1 19 37 703 78283 1487377 2896471 55032949